. Principles of economic zoo?logy. Zoology, Economic. LEPIDOrTERA 169. A B Fig. 139.—A, Male, and B, female, gypsy moths. Natural size. (Forbush and Fernald.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Daugherty, Lewis Sylvester, 1857-; Daugherty, L. S. , Mrs. , 1859-. Philadelphia, London, W. B. Saunders

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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1915